import Vue from 'vue'
import VueRouter from 'vue-router'
import Login from '../components/Login.vue'
import Home from '../components/Home.vue'
import Welcome from '../components/welcome.vue'
import Users from '../components/user/Users.vue'
import Roles from '../components/power/Roles.vue'
import Cate from '../components/Goods/cate.vue'
import Params from '../components/Goods/Params.vue'
import List from '../components/Goods/List.vue'
import  Rights from '../components/power/Rights.vue'
import Add from '../components/Goods/Add.vue'
Vue.use(VueRouter)

const routes = [
  {
    path: '/',
    redirect: '/login'
  },
  {
    path: '/login',
    component: Login
  },
  {
    path: '/home',
    component: Home,
    redirect: '/welcome',
    children: [
      {
        // 在这里home 组件里展示welcome子组件
        path: '/welcome',
        component: Welcome
      },
      {
        path: '/users',
        component: Users
      },
      {
        path: '/roles',
        component: Roles
      },
      {
        path: '/categories',
        component: Cate
      },
      {
        path: '/params',
        component: Params
      },
      {
        path: '/goods',
        component: List
      },
      {
        path:'/rights',
        component:Rights
      },
      {
        path:'/goods/add',
        component: Add,
      },
    ]
  }
]

const router = new VueRouter({
  routes
})
// 挂载路由导航守卫
// to要访问的路径
// from从哪里来的
// next直接放行
// 访问login直接放行
router.beforeEach((to, from, next) => {
  if (to.path === '/login') return next()
  // 获取token
  const tokenStr = window.sessionStorage.getItem('token')
  //  token不存在就跳转到登录页面
  if (!tokenStr) return next('/login')
  next()
})

export default router
